Hey all, Just wondering where the hell is the equalizer in the Alpine CDA9885, I need to bring down the higher frequencies as there is way to much sibilance :gtfo:.

Rtfm :d

i doubt its a headunit problem, do you have dash mounted focal tweeters or something?

What speakers, what amp?

Theres nothing in the manual....

Boston S60's and jaycar amp

what can cause sibilance? i have A-sail mounted Focal's and its not that bad as people have said they can be? i am thinking of moving them up to the A-pillar, with a proper flush surround, as i've heard this can improve it a fair bit too